South Central Projects

State Route 90 and Buffalo Soldier Trail to State Route 90 and State Route 80 Junction

SR-90 - Sierra-Vista project map

Lane restrictions scheduled on State Route 90 in Sierra Vista through September
Allow extra travel time and plan for delays

The Arizona Department of Transportation advises drivers to plan for the following restrictions as a chip-seal project will begin at State Route 90 in Sierra Vista between the intersection of SR 90 and Buffalo Soldier Trail to the SR 90 and SR 80 junction. This project excludes the areas between Industry Drive and Moson Road and San Pedro/Lewis Spring bridge approaches.

  • East- and westbound SR 90 will be narrowed to one lane in each direction between milepost 317.5 (Buffalo Soldier Trail) and milepost 321 (Industry Drive).
  • East- and westbound SR 90 will be reduced to one lane, with flagger stations and a pilot car, between milepost 326 (Moson Rd) and milepost 336 (SR 80).
  • Work is scheduled to begin Monday, Aug. 14, and continue through September, from 6 a.m. to 6.p.m.weekdays.
  • The speed limit will be reduced in the work zones. Expect heavy delays.

Drivers should proceed through the work zone with caution, slow down and watch for construction personnel and equipment.

Schedules are subject to change based on weather and other unforeseen factors. For real-time highway conditions statewide, visit ADOT’s Traveler Information Site at, follow ADOT on Twitter (@ArizonaDOT) or call 511, except while driving.

The Arizona Ombudsman – Citizens Aide helps citizens to resolve ongoing issues with State Agencies.

Civil RightsTitle VI of the Civil Rights Act of 1964, and the Americans with Disabilities Act (ADA)

Pursuant to Title VI of the Civil Rights Act of 1964, and the Americans with Disabilities Act (ADA), ADOT does not discriminate on the basis of race, color, national origin, age, sex or disability. Persons that require a reasonable accommodation based on language or disability should contact ADOT’s Civil Rights Office at Requests should be made as early as possible to ensure the State has an opportunity to address the accommodation.

De acuerdo con el título VI de la Ley de Derechos Civiles de 1964 y la Ley de Estadounidenses con Discapacidades (ADA por sus siglas en inglés), el Departamento de Transporte de Arizona (ADOT por sus siglas en inglés) no discrimina por raza, color, nacionalidad, edad, género o discapacidad.  Personas que requieren asistencia (dentro de lo razonable) ya sea por el idioma o por discapacidad deben ponerse en contacto con la Oficina de Derechos Civiles en Las solicitudes deben hacerse lo más pronto posible para asegurar que el equipo encargado del proyecto tenga la oportunidad de hacer los arreglos necesarios.